/*
 * Copyright © 2024-2025 Wenze Wei
 *
 * This file is part of StadionOS.
 *
 * This Source Code Form is subject to the terms of the GNU General Public License, v. 2.0.
 * You can obtain a copy of the GPL at
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
 * the specific language governing rights and limitations under the License.
 */

#include "../include/string.h"

/**
 * @brief Compare two strings, with a specified length.
 *
 * @param str1 The first string.
 * @param str2 The second string.
 * @param n The maximum number of bytes to compare.
 * @return An integer less than, equal to, or greater than zero if str1 is found to be less than, equal to, or greater than str2, respectively.
 */
int Sstrncmp(const char *str1, const char *str2, size_t n) {
    while (n && *str1 && (*str1 == *str2)) {  
        str1++;  
        str2++;  
        n--;  
    }  
    return n ? *(unsigned char *)str1 - *(unsigned char *)str2 : 0;  
}
